:root { 
    --primary: #007bff; 
    --success: #28a745; 
    --bg: #f0f2f5; 
    --dark: #1a1a1a; 
    --danger: #ff4d4d;
}

body { 
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; 
    background: var(--bg); 
    margin: 0; 
    padding: 0; 
    color: #333; 
}

/* Barra Superior */
.nav-bar { 
    background: var(--dark); 
    color: white; 
    padding: 10px 25px; 
    display: flex; 
    justify-content: space-between; 
    align-items: center;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}

.nav-bar a { 
    color: var(--danger); 
    text-decoration: none; 
    font-size: 14px; 
    font-weight: bold; 
    border: 1px solid var(--danger); 
    padding: 5px 12px; 
    border-radius: 4px; 
    transition: 0.3s;
}

.nav-bar a:hover {
    background: var(--danger);
    color: white;
}

/* Layout */
.container { 
    max-width: 1100px; 
    margin: 20px auto; 
    padding: 0 15px; 
}

.card { 
    background: #fff; 
    padding: 20px; 
    border-radius: 12px; 
    box-shadow: 0 4px 6px rgba(0,0,0,0.05); 
    margin-bottom: 20px; 
    border: 1px solid #e1e4e8; 
}

h1 { margin: 0 0 10px 0; font-size: 20px; color: var(--dark); }

/* Mensagens e Formulário */
.message { padding: 12px; border-radius: 6px; margin-bottom: 15px; font-size: 14px; }
.success { background: #d4edda; color: #155724; border: 1px solid #c3e6cb; }
.error { background: #f8d7da; color: #721c24; border: 1px solid #f5c6cb; }

.upload-form { display: flex; gap: 15px; align-items: center; flex-wrap: wrap; }
input[type="file"] { padding: 8px; border: 1px solid #ddd; border-radius: 5px; background: #fafafa; }

button { 
    background: var(--primary); 
    color: white; 
    border: none; 
    padding: 10px 20px; 
    border-radius: 5px; 
    cursor: pointer; 
    font-weight: bold; 
    transition: background 0.3s;
}

button:hover { background: #0056b3; }

/* Iframe */
#ninjaFrame { width: 100%; height: 800px; border: none; border-radius: 0 0 12px 12px; }


/* Estilos Específicos do Login */
.login-body { 
    display: flex; 
    justify-content: center; 
    align-items: center; 
    height: 100vh; 
}

.login-box { 
    background: white; 
    padding: 35px; 
    border-radius: 15px; 
    box-shadow: 0 10px 30px rgba(0,0,0,0.15); 
    width: 350px; 
    border: 1px solid #eee;
}

.login-box h2 { 
    text-align: center; 
    color: var(--dark); 
    margin-bottom: 30px; 
    font-size: 24px;
    letter-spacing: 1px;
}

.input-group { margin-bottom: 20px; }
.input-group label { 
    display: block; 
    font-size: 11px; 
    margin-bottom: 8px; 
    color: #888; 
    font-weight: bold;
}

.input-group input { 
    width: 100%; 
    padding: 12px; 
    border: 1px solid #ddd; 
    border-radius: 8px; 
    box-sizing: border-box; 
    background: #fdfdfd;
    transition: 0.3s;
}

.input-group input:focus {
    border-color: var(--primary);
    outline: none;
    box-shadow: 0 0 5px rgba(0,86,179,0.1);
}

#error { 
    color: var(--danger); 
    font-size: 13px; 
    text-align: center; 
    margin-top: 15px; 
    font-weight: 500;
}